My boyfriend and I had sex about a week ago, my peroid came pretty early but I got in a car accident and have been really stressed out lately, this mo?

Run on sentence. The question runs on...Need to structure the question more clearly. What is ''mo"?. First relax and let's think about this. Sex a week ago: no problem. Early period: quite common and usually not a concern. Anything affecting ovulation time could affect regularity, like stressful time. Car accident most concerning: was your mind wandering, distracted, on phone(hands-free or not), texting?
Clarify please. Not sure what you are asking. Are you trying to ask a question about stress or sex? Either i or some other foctor here will be glad to answer if you are more clear.